Optical head and optical disk apparatus

Details Optical head and optical disk apparatus Optical head and optical disk apparatus

2007-12-26

2010-12-07

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S112280

Reexamination Certificate

active

07848210

ABSTRACT:
An optical head includes: a first optical element having an optical characteristic of reflecting a light of a first wavelength and transmitting lights of second and third wavelengths, on the first optical element the light of the first wavelength from a first light source being incident; and a second optical element having an optical characteristic of transmitting the light of the first wavelength, reflecting the light of the second or the third wavelength in a first polarization state and transmitting the light of the second or the third wavelength in a second polarization state, a first surface on which the light reflected by the first optical element is incident, a second surface on which the lights of the second and the third wavelengths from second and third light sources are incident, and a third surface emitting the first, the second and the third lights incident from the first and the second surfaces.

REFERENCES:
patent: 7242647 (2007-07-01), Katayama
patent: 2003/0107979 (2003-06-01), Kim et al.
patent: 2003/0202453 (2003-10-01), Cho et al.
patent: 2004/0156302 (2004-08-01), Nakata et al.
patent: 2005/0135220 (2005-06-01), Katayama
patent: 2005/0237899 (2005-10-01), Ikenaka et al.
patent: 2005/0265152 (2005-12-01), Hirai
patent: 2006/0013109 (2006-01-01), Fujiwara et al.
patent: 2006/0077784 (2006-04-01), Kanaya et al.
patent: 2006/0077809 (2006-04-01), Makita et al.
patent: 2006/0245335 (2006-11-01), Nagata et al.
patent: 1767014 (2006-05-01), None
patent: 1801356 (2006-07-01), None
patent: 1 524 654 (2005-04-01), None
patent: 2002-42366 (2002-02-01), None
patent: 2004-158118 (2004-06-01), None
patent: 3604125 (2004-10-01), None
patent: 2005-141892 (2005-06-01), None
patent: 2005-339718 (2005-12-01), None
patent: 2006-100376 (2006-04-01), None
patent: 2006-134474 (2006-05-01), None
patent: 10-2006-0051246 (2006-05-01), None
patent: 10-2006-0051541 (2006-05-01), None

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